Tooth-brush.



No. 660,677. I Patented Oct. 30, I900.

' D. J. ARCHER.

TOOTH BRUSH.

(Application filed Dag. 9, 1899.)

(No Model.)

III.

I 1721 0501 6 M g ldnriinr rrtcn.

DAVID JOHN Al ttliii lit, OF F0520N'lO, CftNAl'lA.

TGGTH BRUSH.

smotrtoerion forming part of Letters Patent No. 660,677, dated Octoberso, 1900.

Application filed December 9, 1899. Serial No. 739,853. No modet To allwhom it may concern.-

Be it known thst 1, DAVID JOHN ARCHER, hat-her, of the city of Toronio,in the county of York, in the Province of Ontario, Canada, have inventedcertain new and useful Iin provements in 'iooth-iirushcs, of which thefollowing is a specification.

My invention relates to improvements in tooth-brushes; and the object ofmy invention is to design tooth-brush so that the dentifrice used forcleaning the teeth can he fedinto the head from the handle ;.t will andit consists, fiSriOtliitl-iiyflftlhead provided with a hollowshaultlscrcwed into a holl w end-ta pered reservoir and means secured tosaid reservoir for feeding the paste into the he d, as hereinafter moreparticularly explained.

The construction of the ports for feeding the dentifrice into the tip ofthe brush are fully described in my application for shaving-brushes,Serial No. 737,235, filed Novemher 16, 1899.

Figure 1 is a perspective View of my tooth brush, showing the capremi'ivcd and hole for feeding the paste into the tip. Fig. 2 is nlongitudinal section showii'ig I in; construction of my tooth-brush.

In the drawings like letters of reference indicato corresponding partsin each iigure.

A is a reservoir-tube in which the dentifrice put, and ii the head,which is screwed by its threaded shank 0 into the nook D of thereservoir. It will he noticed t int one end oi' the reservoir A istapered, at i). The object of this tapered portion to bring the paste Binto at reduced passage-way before it is fed into the passage-way G intotho head I and. thus concentrate the pressure of the paste as much aspossible directly over the entrance of the passage-way G. The inner endit of v the passag -Way G is beveled, and thus reduces as much aspossible any obstruction around the sides of the hole to the entrance ofthe paste. The shank D is reinforced on its upper side at I). The innerend I of the mSsage-Way (3i is enlarged, so as to facilitate the passageof the paste therefrom into the head B.

J is at slocvo fitting over the reservoir 13..

Rigitlly secured. in its upper end 5 is :1 threadod rod ii, which hasinovcniei'it in the internaliy threaded bearing plug li, which isscrewed into the end a of the reservoir. Rigidly secured. to the innerend of the threaded rod L is a plungenhcad O, which fits the inside ofthoreservoir A. The object of the plunger-head O is to feed thedentifrice into the head 13 when the sleeve J is turned, as will heunderstood.

P P are alternate rows of holes made in the sleeved. The head of thebearing-plug M is milled, as at m. The objectof the alternate rows ofholes l I is to enable the tips of the fingers to be pressed into saidholes and'unscrew the bearingplug M from the reservoir A, no matter howfar in or how far out the sleeve J inayhappen at the moment to be, andthus obviate the necessity of having to m e the said sleeve into anyparticular place before the bearing-plug M could. be removed.

R is a metal cap for protecting the tip 13. The cap R is provided withflanges b b, which fit on the inner side of the head B when the cap isin place, as shown.

From this specification it will be seen that my tooth-brush is of verypositive action and simple in construction.

What I claim as my invention ie- In it tooth-brush, the combination of aheadprovided with an externally-threaded short shan it formed integralwith the solid flat hack thereof, a longitudinal passage-way in saidshank opening directly into the said head, the on lot-god diiniharginnend of said passageway being in the same plane as the inner coiving 0ndof said passage-way being in a plane at right angles to the plane of thesaid discharging end, a tubular taper-ended reserll'- face of the solidhack, and the enlarged revoir screwing over said shank, the longitudi-9o nal axis of the reservoir being in a directline with the centor'ofthe major portion of the passageway in said shank, the upper inner endof said shank being reinforced nemth discharging end of saidpassage-way, an en- 'velopingr rovoluble feeding-sleeve for said tubularreservoir, :1. milledhenringplug held in the large end ofsaid reservoir,a thrczuled rod secured to said feeding-sleeve and screwing through saidbenringwiug, a revoluhle solid plungoohesd rigidly secured to the innorend of said threaded rod and operating 11 the reservoir, the saidplunger-head being ,n wme to iihis specification in the presence ofactuated by the said revoluble feeding-sheave two subscribing witnesses.to feed the dentifrice from the reservoir; 1' through the passage-way inthe said shank" DAVID JOHN ARCHER 5 into the head, substantially as setforth and Witnesses: I

for the purpose specified. EGERTON R! CASE, In testimony whereof I havesigned my L. C. REYNOLDS.

